In December 2009, Google announced it would be using the web search history of all its users in order to populate search results.[32] On June 8, 2010 a new web indexing system called Google Caffeine was announced. Designed to allow users to find news results, forum posts and other content much sooner after publishing than before, Google caffeine was a change to the way Google updated its index in order to make things show up quicker on Google than before. According to Carrie Grimes, the software engineer who announced Caffeine for Google, "Caffeine provides 50 percent fresher results for web searches than our last index..."[33] Google Instant, real-time-search, was introduced in late 2010 in an attempt to make search results more timely and relevant. Historically site administrators have spent months or even years optimizing a website to increase search rankings. With the growth in popularity of social media sites and blogs the leading engines made changes to their algorithms to allow fresh content to rank quickly within the search results.[34]
Could the nofollow change could be interpreted as a form of usability guidance? For instance, I’ve recently removed drop-down menus from a handful of sites because of internal link and keyword density issues. This wasn’t done randomly. Tests were done to measure usage and value of this form of navigation that made it easy to make the change – allowing usability and SEO to dovetail nicely.
A navigational page is a simple page on your site that displays the structure of your website, and usually consists of a hierarchical listing of the pages on your site. Visitors may visit this page if they are having problems finding pages on your site. While search engines will also visit this page, getting good crawl coverage of the pages on your site, it's mainly aimed at human visitors.

Positioning of a webpage on Google SERPs for a keyword depends on relevance and reputation, also known as authority and popularity. PageRank is Google's indication of its assessment of the reputation of a webpage: It is non-keyword specific. Google uses a combination of webpage and website authority to determine the overall authority of a webpage competing for a keyword.[36] The PageRank of the HomePage of a website is the best indication Google offers for website authority.[37]
I was exactly thinking the same thing what Danny Sullivan had said. If comments (even with nofollow) directly affect the outgoing PR distribution, people will tend to allow less comments (maybe usage of iframes even). Is he right? Maybe, Google should develop a new tag as well something like rel=”commented” to inform spiders about it to give less value and wordpress should be installed default with this attribute 🙂
An aesthetically pleasing and informational website is an excellent anchor that can easily connect to other platforms like social networking pages and app downloads. It's also relatively simple to set up a blog within the website that uses well-written content with “keywords” an Internet user is likely to use when searching for a topic. For example, a company that wants to market its new sugar-free energy drink could create a blog that publishes one article per week that uses terms like “energy drink,” “sugar-free,” and “low-calorie” to attract users to the product website.
Your social media strategy is more than just a Facebook profile or Twitter feed. When executed correctly, social media is a powerful customer engagement engine and web traffic driver. It’s easy to get sucked into the hype and create profiles on every single social site. This is the wrong approach. What you should do instead is to focus on a few key channels where your brand is most likely to reach key customers and prospects. This chapter will teach you how to make that judgment call.
Digital marketing is also referred to as 'online marketing', 'internet marketing' or 'web marketing'. The term digital marketing has grown in popularity over time. In the USA online marketing is still a popular term. In Italy, digital marketing is referred to as web marketing. Worldwide digital marketing has become the most common term, especially after the year 2013.[19]

Backlinks are important for both search engines and end users. For the search engines, it helps them determine how authoritative and relevant your site is on the topic that you rank for. Furthermore, backlinks to your website are a signal to search engines that other external websites are endorsing your content. If many sites link to the same webpage or website, search engines can interpret that content is worth linking to, and therefore also worth ranking higher on a SERP (search engine results page). For many years, the quantity of backlinks was an indicator of a page’s popularity. But today algorithms like Google's Penguin update, were created to help with other ranking factors; pages are ranked higher based on the quality of the links that they are getting from external sites and less on quantity.

PageRank is a link analysis algorithm and it assigns a numerical weighting to each element of a hyperlinked set of documents, such as the World Wide Web, with the purpose of "measuring" its relative importance within the set. The algorithm may be applied to any collection of entities with reciprocal quotations and references. The numerical weight that it assigns to any given element E is referred to as the PageRank of E and denoted by {\displaystyle PR(E).} Other factors like Author Rank can contribute to the importance of an entity.
9. Troubleshooting and adjustment. In your first few years as a search optimizer, you’ll almost certainly run into the same problems and challenges everyone else does; your rankings will plateau, you’ll find duplicate content on your site, and you’ll probably see significant ranking volatility. You’ll need to know how to diagnose and address these problems if you don’t want them to bring down the effectiveness of your campaign.

Page Ranks Denver